Concern: Wilde Lake High School: October 17th, 2018 (CXWLHS2018000080)

Date of IEQ Report Form
Date of Report
October 26th, 2018
An individual is experiencing general health symptoms.

Note: The Office of the Environment has recently transitioned to a new Online IEQ platform (as of August 2018). The new platform does not allow the back-dating of IEQ concerns. This concern is inappropriately dated October 17, 2018. The concern should be dated August 23, 2018.
IEQ Investigation Process

Identify deficiencies that may impact IEQ and/or sources of odor concerns. Typically includes the following depending on the nature of concern, but not limited to:

  • interview/questionnaire of concern individual(s)
  • inspection above drop ceiling (condition of roof deck, pipe insulation, return air plenum)
  • inspection of ventilation system (operation of variable air volume box and outdoor air dampers, check controls, measurements of carbon dioxide, temperature and relative humidity, sources near outdoor air intake, measure return and supply air volume, cleanliness of coils, liner and condensate pan)
  • inspection of exterior
  • inspection below drop ceiling (housekeeping, sink and floor drain traps, signs of past and present moisture concern via visual and/or moisture meter, mold growth, ensure connection of current and capping of abandoned sanitary vents, odorizers, excessive plants and fabric items, identify potential pathways, and measure volatile organic compounds, carbon monoxide, and lighting)

Date(s) of Assessment:  August 30, September 5 and 12, 2018

The room is one of three within a large room.  The rooms are divided by added walls with space between the tops of the walls and drop ceiling so not to significantly hinder the ventilation design (mixing of air / thermal discomfort).

The thermostat is located in room 243 of this subdivided room.  The room contains lamp / lighting fixtures brought in by staff that are not part of physical building.

Several plants are housed within room 243; with water seeping through the plastic table cloth and onto the table top.

An outstanding and/or musty odor was not detected.

Mold growth was not observed on inspected surfaces.

The area is served by Air Handling Unit (AHU) 7.  The unit was inspected for cleanliness and proper operation.  The outdoor air dampers appeared closed in unit 7.

By qualitative means air is being provided from the supply air diffusers.

A large pile of fireproofing was observed on the back side of the ceiling tile in room 219 in the corner near flag and wall clock.  This was from a roof replacement phase two years ago.

Building Services indicated ventilation controls may have been compromised during the roofing and/or fireproofing work taking place over the summer (2018).

Corrective Actions
September 21st, 2018

Work Order 86612.  Building Services adjusted and calibrated the outdoor air dampers for AHU 7.

October 4th, 2018

Work order 87522.  Building Services acquired services to remove fireproofing debris observed above the drop ceiling.

October 19th, 2018

School administration is to inform staff that live plants are to have a secondary basin to catch water seeping through the primary planter.

October 19th, 2018

Should rooms adjoining 243 become uncomfortable, it may be due to additional heat load from additional lights or if a lamp is placed too close to thermostat located in 243.

Tracking Number